dimensions in inches and (millimeters) - 138 - version: b07 SRA2020 - sra20150 20.0 amps. schottky barrier rectifiers to-220ac .412(10.5) max .185(4.70) .175(4.44) .055(1.40) .045(1.14) .27(6.86) .23(5.84) .11(2.79) .10(2.54) .025(0.64) .014(0.35) .154(3.91) .148(3.74) dia pin1 2 .113(2.87) .103(2.62) .16(4.06) .14(3.56) .037(0.94) .027(0.68) .205(5.20) .195(4.95) .594(15.1) .587(14.9) .56(14.22) .53(13.46) pin 1 pin 2 case features low power loss, high efficiency. high current capability, low vf. high reliability high surge current capability. epitaxial construction. guard-ring for transient protection. for use in low voltage, high frequency inventor, free wheeling, and polarity protection application mechanical data cases: to-220ac molded plastic epoxy: ul 94v-0 rate flame retardant terminals: pure tin plated, lead free. solderable per mil-std-202, method 208 guaranteed polarity: as marked high temperature soldering guaranteed: 260 o c/10 seconds.25?,(6.35mm) from case. weight: 2.24 grams maximum ratings and electrical characteristics rating at 25 o c ambient temperature unless otherwise specified. single phase, half wave, 60 hz, resistive or inductive load. for capacitive load, derate current by 20% type number symbol sra 2020 sra 2030 sra 2040 sra 2050 sra 2060 sra 2090 sra 20100 sra 20150 units maximum recurrent peak reverse voltage v rrm 20 30 40 50 60 90 100 150 v maximum rms voltage v rms 14 21 28 35 42 63 70 105 v maximum dc blocking voltage v dc 20 30 40 50 60 90 100 150 v maximum average forward rectified current see fig. 1 i (av) 20 a peak forward surge current, 8.3 ms single half sine-wave superimposed on rated load (jedec method ) i fsm 300 a maximum instantaneous forward voltage @20a v f 0.55 0.70 0.92 1.02 v 0.5 0.1 maximum d.c. reverse current @ tc=25 o c at rated dc blocking voltage @ tc=100 o c i r 15 10 5.0 ma ma typical thermal resistance (note) r jc 1.5 o c/w operating junction temperature range t j -65 to +125 -65 to +150 o c storage temperature range t stg -65 to +150 o c notes: mounted on heatsink size of 2? x 3? x 0.25? al-plate.
ratings and characteristic curves (SRA2020 thru sra20150) fig.2- maximum non-repetitive forward surge current peak for ward surge current . (a) 1 2 5 10 20 100 50 50 100 150 250 200 300 350 number of cycles at 60hz 8.3ms single half sine wave jedec method fig.4- typical reverse characteristics instantaneous reverse current .(ma) 20 40 60 80 100 120 10 1 0.1 0.01 0.001 percent of rated peak reverse voltage. (%) tj=100 c 0 tj=25 c 0 tj=75 c 0 fig.1- maximum forward current derating curve average for ward current . (a) 0 50 100 150 0 4 8 12 16 20 case temperature. ( c) o SRA2020-40 sra2050-150 version: b07 fig.5- typical junction capacitance per leg junction cap acitance.(pf) 0.1 1.0 10 100 10 1000 5000 reverse voltage. (v) fig.6- typical transient thermal characteristics transient thermal impedance. ( c/w) o 1 0.01 0.1 10 100 0.1 10 1 100 pulse duration. (sec) tj=25 c f=1.0mhz vsig=50mvp-p 0 fig.3- typical forward characteristics instantaneous for ward current . (a) .1 .2 .3 .4 .5 .6 .7 .8 .9 1.0 0.1 1.0 10 50 forward voltage. (v) tj=25 c pulse width=300 s 1% duty cycle o SRA2020-2040 sra2050-2060 s r a 2 0 9 0 -2 0 1 0 0 140 0 s r a 20150
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